A single part gasket that is securely attached to mechanical equipment and other equipment is used to reduce pressure to increase contact area and prevent loosening and protective parts and screws. 2. Application Scope: Automotive Industry Car, Truck, Passenger Car, Construction Machinery, Wind Power Generator, Agricultural Machinery, Foundry Industry, Excavation Equipment, Ship Building, Mining Machinery, Utility, Railroad Transportation 3. Surface treatment: 4 washes bright. Standard Type: German Standard 5 Product specifications: M5 x 610 pcsM5 x 1210 pcsM5 x 810 pcsM5 x 1610 pcsM5 x 2010 pcsM5 x 2010 pcsM6 x 1210 pcsM6 x 1210pcsM6 M6161 0 pcs x 2010 pcs Hex nut45 pcs SWasher 45 pcs